Project Number Date
test_Tails_ISO_stable 5649 15 May 2025, 12:31

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 51 0 0 0 0 51 6 0 6 10:57.455 Passed
Tags: @product @slow @not_release_blocker
Feature System memory erasure on shutdown
As a Tails user when I shutdown Tails I want the system memory to be free from sensitive data.
Tags: @product @slow @not_release_blocker
24.103
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.362
And I prepare Tails for memory erasure tests 0.425
When I start a process allocating 128 MiB of memory with a known pattern 2.556
Then patterns cover at least 128 MiB in the guest's memory 3.673 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 0.787
Then I find very few patterns in the guest's memory after 5 seconds 8.298 
Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)
After features/support/hooks.rb:330 0.692
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
24.431
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.442
And I prepare Tails for memory erasure tests 0.406
And I find very few patterns in the guest's memory 3.126 
Pattern coverage: 0.000% (0 MiB out of 859 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.918
Then patterns cover at least 99% of the test FS size in the guest's memory 3.749 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.488
Then I find very few patterns in the guest's memory after 3 seconds 6.300 
Pattern coverage: 0.000% (0 MiB out of 859 MiB reference memory)
After features/support/hooks.rb:330 0.719
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
47.004
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 7.975
And I prepare Tails for memory erasure tests 0.415
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.141
Then I find very few patterns in the guest's memory 3.266 
Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.536
Then patterns cover at least 75% of the test FS size in the guest's memory 4.001 
Pattern coverage: 89.047% (113 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.030
Then I find very few patterns in the guest's memory after 3 seconds 6.119 
Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)
# read cache
When I mount the USB drive again 0.224
And I read the content of the test FS 0.574
Then patterns cover at least 99% of the test FS size in the guest's memory 3.497 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.362
Then I find very few patterns in the guest's memory after 3 seconds 6.857 
Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)
After features/support/hooks.rb:330 0.686
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:13.628
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.037
And I prepare Tails for memory erasure tests 0.407
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.179
Then I find very few patterns in the guest's memory 2.882 
Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.720
Then patterns cover at least 99% of the test FS size in the guest's memory 3.621 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.628
Then I find very few patterns in the guest's memory after 3 seconds 5.711 
Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)
# read cache
When I mount the USB drive again 3.801
And I read the content of the test FS 0.697
Then patterns cover at least 99% of the test FS size in the guest's memory 3.667 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.681
Then I find very few patterns in the guest's memory after 3 seconds 5.590 
Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)
After features/support/hooks.rb:330 1.123
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
47.796
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 7.870
And I prepare Tails for memory erasure tests 0.414
When I fill a 128 MiB file with a known pattern on the root filesystem 14.137
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.956
Then patterns cover at least 128 MiB in the guest's memory 2.646 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 20.759 
Pattern coverage: 0.000% (0 MiB out of 857 MiB reference memory)
After features/support/hooks.rb:330 3.522
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:20.490
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:36.747
And I prepare Tails for memory erasure tests 0.460
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.051
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.218 
Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)
After features/support/hooks.rb:330 3.487
After features/support/hooks.rb:100 0.014